{"id":"CVE-2023-4459","title":"A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel","summary":"A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to caus…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476","CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.18","enterprise_linux = 8.0","enterprise_linux = 9.0"],"patched":["linux_kernel 5.18"],"published":"2023-08-21","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:49.473","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-4459","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:0412","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1250","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1306","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1367","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1382","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2006","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2008","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4459","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2219268","label":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0412","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1250","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1306","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1367","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1382","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2006","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2008","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4459","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2219268","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00249,"epssPercentile":0.14891,"ingestedAt":"2026-10-08T22:11:53.759Z","slug":"CVE-2023-4459","body":"## Overview\n\nA NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.\n\n## Affected\n\n- `linux_kernel < 5.18`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.18`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}